542626245 has 144 divisors (see below), whose sum is σ = 1150269120. Its totient is φ = 235726848.

The previous prime is 542626241. The next prime is 542626283.

542626245 is a `hidden beast` number, since 5 + 4 + 2 + 626 + 24 + 5 = 666.

542626245 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 542626245 - 2² = 542626241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542626241) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 5594037 + ... + 5594133.

It is an arithmetic number, because the mean of its divisors is an integer number (7987980).

Almost surely, 2^542626245 is an apocalyptic number.

It is an amenable number.

542626245 is an abundant number, since it is smaller than the sum of its proper divisors (607642875).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542626245 is a wasteful number, since it uses less digits than its factorization.

542626245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 214 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 542626245 is about 23294.3393338382. The cubic root of 542626245 is about 815.6432850087.

The spelling of 542626245 in words is "five hundred forty-two million, six hundred twenty-six thousand, two hundred forty-five".